Modified Dolph‐Chebyshev Arrays

A method is presented to synthesize linear array patterns in which the side lobes decay very rapidly on either side of the main beam and at the same time exhibit, very closely, the optimum property of Dolph‐Chebyshev patterns. When compared with Dolph‐Chebyshev arrays having an equal number of elements, the side lobes of the modified arrays are considerably lower, the gain is approximately the same, and there is a small increase in the width of the main beam. For larger arrays, the increase in the beam width is negligible. In the cases where it is difficult to realize practical Dolph‐Chebyshev arrays, modified arrays appear to be more practical. Some specific examples are given.